Multiple valve control



Jan. 25, 1944. B H; MANNv JR v 2,339,867v

y lMULTIPLE VALVE cNTRoL l Filed July 28, 1942 l :Flo-3; Y f

ATTORNEY Patented Jan. 2.5, `1944 rva'Lvr. ooN'rnoi."

t I H. Mann, 'Jr'.yWebster Groves,vMo.;-as-' l i signor `to--IJarter Carburetor Corporation. St.v I Louis, Mo., acorporation ofellelaware l .e v.

' Appueetien July 28,1942, seiiaiflvafutzsazj' V 4c1aims.-(cl.1s'zt144') t l u Struct@ te estese' outwardly' projecting." .Y pin 2li onmember I8'after'valve 8 lhasbeensubtstantially opened. A stop pin 30 on the wall of f This-invention relates Vte munitie veivee heving .'loint controls. Where one or more fluid streams are controlled by multiple valves, it may bedesirable to operate one valve in accordance with the positioning of the other valve and to provide an indication as to such joint operation.

In the present embodiment, two fluid streams are caused to join in a mixture duct, the yduct and one of the .component streams having controlling valves therein. The mixture duct valve is controlled by the operator and the other valve is provided withmeans for yieldingly closing the same. There is also provided interconnecting means between the valves whereby when the mixture duct valve'is opened beyond a predetermined degree, the other valve is forced partially open. Just prior to such enforced opening, the opening of the mixture duct valve is momentarily resisted so as to indicate to the operator the impending .enforced opening of the other valve.

In the accompanying drawing which illustrates the invention:

Fig. 1 is a partial view of a-fiuid system including multiple valves having the novel joint control applied thereto.

Fig. 2 is a view similar to Fig. 1 but showing the valves in different positions.

Fig. 3 is a view taken at 90 to Fig. 1.

In the drawing, a piece of pipe 8 has a pipe 1 joined thereto between pivoted butterfly valves- 8 and'8.- Valve' 8 is carried on a shaft I0 having a crank IIrlgid therewith.- This crank and valve 8 are urged counterclockwi'se by a tension spring I2. Valve 8 is carried on a shaft I8 on which a crank arm I4 is rigidly fastened. Arm I4 has a projecting lobe Il to which is secured a coiled spring I8 which normally urges the arm clockwise in a direction to close valve 8. Also connected to lobe I5 is a rod I1 which extends to a suitable control handle or button for manual operation.

pipe 6 limits clockwise rotation of member I8'.

This mechanism operates as follows:

`short linger 28 on control arm I4, when valve 8 f is opened to the broken line position in Fig. 1.

Continued opening of valve 8 distorts spring strip 24 allowing iinger 28 to pass rover and beas to draw downwardly on link 23 and force motive carburetor in which A member I8 has a boss 28 rotatably receiving a pintle 2| adjacent arm I4 and has a slot 22 in one portion receiving the lower end of a link'28 secured at its upper end to lever I'I opposite spring I2. A curved spring strip 24 is secured to pintle receiving boss 28 on member I8 and extends partially therearound. An eccentric pin gage spring strip 24 during opening o'f this valve.

A second, longer iinger 28 on arm I4 is con` valve 8 partially open against the tension of spring I2.

Thus, the quantity oi' fluid passing through the upper portion of pipe 8 is automatically increased when manual valve 9 has been substantially fully opened, but a momentary indication is given to the operator by over-center spring 24 prior to such opening of valve 8, so that the manual valve has -a considerable range of manual movement without the danger of affecting upper valve 8, in case this is not desired.

An example wherein this type of multiple valve control has particular utility is an auto' it is frequently desired to open the choke valve, otherwise automaticaly controlled, during .starting of the engine lso as to "sweep out excessive fuel which may "have been lodged in the engine manifold.l

The invention, however. is not limited to thisy use and, further, may bemodlned as will occur to those skilled in the art and the exclusive use of all modications as come within the scope of the appended claims is contemplated. Iclaim: i

1. In combination with a iluidduct having rst and second valves therein, means to yieldingly close saidl first valve, a manual control for said second valve, a .one-way operative connection between said valves for positively opening said rst valve responsive to substantial opening movement of said second valve, and a yielding element mounted adjacent said control and independently thereof and positioned to be mo'- mentarily engaged by said control during 'opening of said second valve to sensibly indicate impending opening of said nrst valvey thereby.

2. In combination-with a iluidV duct having `first and second valves therein, means to yieldsprinizv device mounted on the duct wall ingly close said ilrstvalve. a manual control for said second valve, an operative connection between said valves for positively opening said rst valve when said second valve is substantially onened, and a'resilient element mounted on the duct wall adjacent said control and in position tn be engaged momentarily by said control dur-` v ing opening of said second valve and prior to opening 'of said rst valve thereby to sensibly indicate to the operator impending opening of first valve.

3. In combination with a iluid duct having first and second valves-therein, a yielding con second-,valve inl one direction. and a snap over cent said control, said device being movable with said first valve to aposition to momentarily engage said control and sensibly resist movemmt of said second valve in the mentioned directionl prior to actuation of said rst valve thereby.

4. In combination with a nuid duct having rst and second. valves therein, means to yieldingly close said nrst valve, a manual control arm tot said second valve, an operative connection between said valves for positively opening said tirst valve when said second valve is substantially opened, a snap over spring device mounted `vindependently of said control arm and movable. with said` iirst valve to a position to be engaged by said' arm when said second valve has been opened to a predetermined-position but, prior to opening of said nrst valve thereby, to sensibly indicate to the operator the arrival oi said second vaive'to said position.

` H. MANN,JI, 

